OR/15/055 Technical information

Scale

The Coal Technologies dataset is produced for use at 1:1 000 000 scale.

Attribute table field descriptions

Table 1 Area with technical potential for opencast workings field descriptions
FIELD NAME	DESCRIPTION
FEATURE	Description of the geological feature represented e.g. Technical potential for opencast workings
SHEET	Digital geological or paper map that the polygon appears on e.g. UK Coal Resource for New Exploitation Technologies
VERSION	Version number of the digital data. The version number is changed when a new dataset is released following major changes. This data is not expected to be updated.
RELEASED	Date the data files were created by BGS: e.g. 18/07/2016
NOM_SCALE	Nominal scale of the published (or compiled) information used to prepare the digital data: e.g. 1 000 000. Provides an indication of scale-dependant accuracy
NOM_BGS_YR	The latest year date of the principal BGS geological information contained in the digital data. This is the year of publication e.g. 2004

Table 2 Extent of underground workings with 500m buffer zone attribute table field descriptions
FIELD NAME	DESCRIPTION
FEATURE	Description of the geological feature represented e.g. Extent of underground workings with 500 m buffer
SHEET	Digital geological or paper map that the polygon appears on e.g. UK Coal Resource for New Exploitation Technologies
VERSION	Version number of the digital data. The version number is changed when a new dataset is released following major changes. This data is not expected to be updated.
RELEASED	Date the data files were created by BGS: e.g. 18/07/2016
NOM_SCALE	Nominal scale of the published (or compiled) information used to prepare the digital data: e.g. 1 000 000. Provides an indication of scale-dependant accuracy
NOM_BGS_YR	The latest year date of the principal BGS geological information contained in the digital data. This is the year of publication e.g. 2004

Table 3 Underground mining exploration prospects attribute table field descriptions
FIELD NAME	DESCRIPTION
FEATURE	Description of the geological feature represented e.g. Underground mining exploration prospects
SHEET	Digital geological or paper map that the polygon appears on e.g. UK Coal Resource for New Exploitation Technologies
PROSPECT	Name of Prospect e.g. Witham
VERSION	Version number of the digital data. The version number is changed when a new dataset is released following major changes. This data is not expected to be updated.
RELEASED	Date the data files were created by BGS: e.g. 18/07/2016
NOM_SCALE	Nominal scale of the published (or compiled) information used to prepare the digital data: e.g. 1 000 000. Provides an indication of scale-dependant accuracy
NOM_BGS_YR	The latest year date of the principal BGS geological information contained in the digital data. This is the year of publication e.g. 2004

Table 4 Resource area for coal mine methane (CMM) attribute table field descriptions
FIELD NAME	DESCRIPTION
FEATURE	Description of the geological feature represented e.g. Resource area for CMM
SHEET	Digital geological or paper map that the polygon appears on e.g. UK Coal Resource for New Exploitation Technologies
LIC_NAME	Name of Licence e.g. Betws Colliery
VERSION	Version number of the digital data. The version number is changed when a new dataset is released following major changes. This data is not expected to be updated.
RELEASED	Date the data files were created by BGS: e.g. 18/07/2016
NOM_SCALE	Nominal scale of the published (or compiled) information used to prepare the digital data: e.g. 1 000 000. Also gives an indication of scale-dependant accuracy
NOM_BGS_YR	The latest year date of the principal BGS geological information contained in the digital data. This is the year of publication e.g. 2004

Table 5 Good prospects for abandoned mine methane (AMM) attribute table field descriptions
FIELD NAME	DESCRIPTION
FEATURE	Description of the geological feature represented e.g. Good prospects for abandoned mine methane (AMM)
SHEET	Digital geological or paper map that the polygon appears on e.g. UK Coal Resource for New Exploitation Technologies
VERSION	Version number of the digital data. The version number is changed when a new dataset is released following major changes. This data is not expected to be updated.
RELEASED	Date the data files were created by BGS: e.g. 18/07/2016
NOM_SCALE	Nominal scale of the published (or compiled) information used to prepare the digital data: e.g. 1 000 000. Provides an indication of scale-dependant accuracy
NOM_BGS_YR	The latest year date of the principal BGS geological information contained in the digital data. This is the year of publication e.g. 2004

Table 6 Coalbed methane (CBM) resource area attribute table field descriptions
FIELD NAME	DESCRIPTION
FEATURE	Description of the geological feature represented e.g. CBM area
SHEET	Digital geological or paper map that the polygon appears on e.g. UK Coal Resource for New Exploitation Technologies
SOURCETHM	Source comment e.g. East Scotland 3
METHANE_RA	Coal Bed Methane range comment e.g. 1 to 4
METHANE_VA	Average Coal Bed Methane value (m³/t) e.g. 2
CBM_RESOUR	Coal Bed Methane resource 10⁶m³ e.g. 28290
CBM_RES_DE	Coal Bed Methane resource density 10⁶m³ ha^-1 e.g. 43
CBM_RANKIN	Ranking defined by the criteria set for a potential CBM area in section 2.3.8 e.g. Good
VERSION	Version number of the digital data. The version number is changed when a new dataset is released following major changes. This data is not expected to be updated.
RELEASED	Date the data files were created by BGS: e.g. 18/07/2016
NOM_SCALE	Nominal scale of the published (or compiled) information used to prepare the digital data: e.g. 1 000 000. Provides an indication of scale-dependant accuracy
NOM_BGS_YR	The latest year date of the principal BGS geological information contained in the digital data. This is the year of publication e.g. 2004

Table 7 Area with good coalbed methane (CBM) potential attribute table field descriptions
FIELD NAME	DESCRIPTION
FEATURE	Description of the geological feature represented e.g. Area with good CBM potential
SHEET	Digital geological or paper map that the polygon appears on e.g. UK Coal Resource for New Exploitation Technologies
VERSION	Version number of the digital data. The version number is changed when a new dataset is released following major changes. This data is not expected to be updated.
RELEASED	Date the data files were created by BGS: e.g. 18/07/2016
NOM_SCALE	Nominal scale of the published (or compiled) information used to prepare the digital data: e.g. 1 000 000. Provides an indication of scale-dependant accuracy
NOM_BGS_YR	The latest year date of the principal BGS geological information contained in the digital data. This is the year of publication e.g. 2004

Table 8 Underground coal gasification (UCG) potential attribute table field descriptions
FIELD NAME	DESCRIPTION
FEATURE	Description of the geological feature represented e.g. Area with good UCG potential
SHEET	Digital geological or paper map that the polygon appears on e.g. UK Coal Resource for New Exploitation Technologies
VERSION	Version number of the digital data. The version number is changed when a new dataset is released following major changes. This data is not expected to be updated.
RESOURCES	Ranking of UCG resources based on the criteria outlined in section 2.3.8
RELEASED	Date the data files were created by BGS: e.g. 18/07/2016
NOM_SCALE	Nominal scale of the published (or compiled) information used to prepare the digital data: e.g. 1 000 000. Provides an indication of scale-dependant accuracy
NOM_BGS_YR	The latest year date of the principal BGS geological information contained in the digital data. This is the year of publication e.g. 2004

Table 9 Areas greater than 1200 m from surface with potential for CO₂ sequestration attribute table field descriptions
FIELD NAME	DESCRIPTION
FEATURE	Description of the geological feature represented e.g. Area with potential for CO₂ sequestration
SHEET	Digital geological or paper map that the polygon appears on e.g. UK Coal Resource for New Exploitation Technologies
VERSION	Version number of the digital data. The version number is changed when a new dataset is released following major changes. This data is not expected to be updated.
RELEASED	Date the data files were created by BGS: e.g. 18/07/2016
NOM_SCALE	Nominal scale of the published (or compiled) information used to prepare the digital data: e.g. 1 000 000. Provides an indication of scale-dependant accuracy
NOM_BGS_YR	The latest year date of the principal BGS geological information contained in the digital data. This is the year of publication e.g. 2004

Table 10 Coal-bearing strata attribute table field descriptions
FIELD NAME	DESCRIPTION
FEATURE	Description of the geological feature represented e.g. Concealed coal bearing strata <1200 m from surface datum
SHEET	Digital geological or paper map that the polygon appears on e.g. Coal Resources Map of Britain 1999
VERSION	Version number of the digital data. The version number is changed when a new dataset is released following major changes. This data is not expected to be updated.
RELEASED	Date the data files were created by BGS: e.g. 18/07/2016
NOM_SCALE	Nominal scale of the published (or compiled) information used to prepare the digital data: e.g. 1 000 000. Provides an indication of scale-dependant accuracy
NOM_BGS_YR	The latest year date of the principal BGS geological information contained in the digital data. This is the year of publication e.g. 1999

Creation of the dataset

The data was originally created in 2004 as part of a project carried out by the British Geological Survey, with the assistance of Wardell Armstrong and Imperial College, London. It represents a summary of the results of the Study of the UK Coal Resource for New Exploitation Technologies Project, carried out for the DTI Cleaner Coal Technology Programme under the management of Future Energy Solutions. For more information please see the project report (Jones et al, 2004^[1]), available at http://www.bgs.ac.uk/downloads/start.cfm?id=1712.

The 2004 study drew on both existing and new digital data to produce a summary paper map with a nominal scale of 1:1 750 000. The paper publication included regional coal fields at 1: 600 000 scale.

Other datasets that were used in the 2004 study include:

BGS 1:50 000 digital geological map data (DiGMapGB-50 version 1.05 and 1.10)
BGS/Coal Authority 1:1 500 000 Coal Resource Map of Britain 1999
Digital dataset of onshore petroleum exploration (PEDL and EXL) licences, supplied by the DTI Oil and Gas Directorate
Seam gas content data originally obtained by British Coal and provided by Wardell Armstrong
Locations of shafts or abandoned mine and working mine locations compiled as part of this project

Dataset history

This is the first digitally released version of this dataset although the data has been made available previously to interested parties under letters of undertaking. The digital version was originally produced in 2004 for the production and release of the paper maps and the content has not been updated since.

Coverage

Data is provided to identify areas for each of the potential coal resources for new exploitation technologies in the UK. Figures 1 (Coal Bearing Strata), 2 (Mining Technologies) and 3 (New Technologies) show the distribution of data.

The data has been divided into Great Britain and Northern Ireland. Great Britain is projected using the British National Grid whilst the Northern Ireland data is projected using the Irish National Grid.

Data format

The Coal Resources for New Exploitation Technologies dataset was created as vector polygons and is available in ESRI shape (.shp) format. Alternative spatial data formats can be prepared but may incur additional processing costs.

Limitations

Coal Resources for New Exploitation Technologies was originally published as a printed cartographic map at 1:600 000, 1:750 000 and 1:100 000 scale the data must not therefore be used at larger scales.
GIS users should note that the original data contained spatial exaggeration and offsetting to enable clarity of printed-paper outputs, these exaggerations and offsets are visible within the GIS converted data.
Coal Resources for New Exploitation Technologies is based on, and limited to, an interpretation of the records in the possession of The British Geological Survey at the time the maps were created in 2004.
The original 2004 published maps also included spatial reference to the location of petroleum licences (source DTI 2002), underground mining licences (source Coal Authority 2002) and mineshafts. This data is not a part of the digital release of Coal Resource for New Exploitation Technologies. This information, if required can be sourced from www.gov.co.uk.
There are areas of uncertainty relating to the resource delineation and the mapping process. Main sources of uncertainty are associated with data availability, data reliability, the presence of faulting and hydrogeology.

Reference

↑ Jones N S, Holloway S, Creedy D P, Garner K, Smith N J P, Browne, M A E and Durucan S. 2004. UK Coal Resource for New Exploitation Technologies. Final Report. British Geological Survey Commissioned Report CR/04/015N.

[Jones-1] Jones N S, Holloway S, Creedy D P, Garner K, Smith N J P, Browne, M A E and Durucan S. 2004. UK Coal Resource for New Exploitation Technologies. Final Report. British Geological Survey Commissioned Report CR/04/015N.

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